import Vue from 'vue'
import VueRouter from 'vue-router'
import Login from '../components/Login.vue'
import Home from '../components/Home.vue'
import Welcome from '../components/Welcome.vue'
import Users from '../components/user/Users.vue'
import Rights from '../components/power/Rights.vue'
import Roles from '../components/power/Roles'
import Cate from '../components/goods/Cate.vue'
import Params from '../components/goods/Params.vue'
import GoodsList from '../components/goods/List.vue'
import Add from '../components/goods/Add.vue'
import Order from '../components/order/Order.vue'
import Report from '../components/report/Report.vue'

Vue.use(VueRouter)

  const routes = [
    { path: '/', redirect: '/login'},
    { path: '/login', component: Login },
    {
      path: '/Home', 
      component: Home, 
      redirect: '/welcome',
      children:[{path: '/welcome', component: Welcome}, 
                {path: '/users', component: Users},
                {path: '/rights', component: Rights},
                {path: '/roles', component: Roles},
                {path: '/categories', component: Cate},
                {path: '/params', component: Params},
                {path: '/goods', component: GoodsList},
                {path: '/goods/add', component: Add},
                {path: '/orders', component: Order},
                {path: '/reports', component: Report}]
    }
    
  ]
  
  const router = new VueRouter({
    routes
  })

//挂在路由导航守卫
router.beforeEach((to, from ,next) => {
  //to 将要访问的路径
  //from代表从哪个路径跳转而来
  //next 是一个函数， 表示放行
  //   next() 放行     next('/login')  强制跳转
  if(to.path === '/login') return next();
  //获取token
  const tokenStr = window.sessionStorage.getItem('token')
  if(!tokenStr) return next('/login')
  next()
})




export default router
